Home > Knowledge > Content

Precautions for LNG storage tanks

Aug 17, 2022

1. The gas cylinder shall be placed in a well ventilated place, and the distance from the fire source and heat source shall not be less than 1.5m. It is forbidden to bake the gas cylinder with fire, scald it with boiling water or expose it to the sun. The air tightness of cylinder valves and pipeline joints shall be checked frequently to ensure no air leakage. Soapy water can be used to check the air leakage, and open fire is strictly prohibited.

2. When igniting, ignite the igniter first, and then open the air. This order should not be reversed. In the process of use, there should be someone to watch and do not leave, so as to prevent the water from boiling over and pouring out the fire, resulting in the explosion caused by the liquefied gas flow. After the cylinder is used, the valve must be closed to prevent gas leakage.

3. The liquefied gas in the cylinder cannot be exhausted, and a certain residual pressure shall be reserved. The residual pressure shall generally be greater than 49.03kpa (i.e. 0.5kg/cm2, gauge pressure) to prevent air from entering the cylinder. After the liquefied petroleum gas is used up, the residual liquid left in the bottle is also a kind of inflammable substance, which shall not be dumped by itself to prevent fire caused by the flow and evaporation of residual liquid.

4. LPG cylinder is a kind of pressure vessel, which should be well maintained and regularly inspected. In the process of handling and use, it is necessary to prevent the cylinder from falling or hitting. It is not allowed to open the cylinder valve by knocking with iron. It is necessary to prevent direct sunlight and long-term rain. Gas cylinders are generally inspected once every two years.

5. Although the explosion range of liquefied petroleum gas is not too wide, its lower limit is small, so it is easy to ignite and explode in case of leakage. In addition, since LPG is heavier than air, it flows downward when it leaks in the air and accumulates in low-lying areas, which becomes a hidden danger of gas explosion. Therefore, the gas is easy to leak. It's not enough to ventilate through the window. Pay attention to the ventilation at the lower part.

6. In case of leakage of liquefied gas in the room, the doors and windows shall be opened for ventilation in time to make it diffuse in the direction without open fire. Hot work is strictly prohibited nearby. It can be used only after the fault is eliminated and the unique smell disappears. The waste liquid leaked on the ground shall be covered with sand and removed to a safe place. When the gas cylinder is on fire, the valve shall be closed immediately, and the gas cylinder shall be moved to an open place outdoors to put out the fire with dry powder extinguishing agent, carbon dioxide extinguishing agent or wet gunny bag covering.

7. Children should be taught not to play with gas cylinders at will, and users should understand the safety knowledge of using gas cylinders.


Send Inquiry